Added semitone is flat 7th.
Cast in 1871 and installed in 1872,
electrified in the early 1900s.
Also an older bell, not part of chime.

*Technical data:

Electric-keyboard chime of 9 bells
Pitch of heaviest bell is D# in the middle octave
Transposition is up 3 semitone(s)
Keyboard range: C C / NONE
There is one added semitone
The whole instrument was installed in 1872
with bells made by Meneely/Wvlt
Year of latest technical information source is 2002

*Links:

A long Wikipedia article
has a clickable photo of the building, and gives an extensive description and history of it.
The chime is mentioned.
Wikimedia
photo
of the church, clickable for a larger version